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70767-39-4

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70767-39-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 70767-39-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,7,6 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 70767-39:
(7*7)+(6*0)+(5*7)+(4*6)+(3*7)+(2*3)+(1*9)=144
144 % 10 = 4
So 70767-39-4 is a valid CAS Registry Number.

70767-39-4Downstream Products

70767-39-4Relevant articles and documents

Synthesis of Halomethyl Isoxazoles/Cyclic Nitrones via Cascade Sequence: 1,2-Halogen Radical Shift as a Key Link

Chen, Hong-Lei,Wei, Dian,Zhang, Jian-Wu,Li, Cheng-Lin,Yu, Wei,Han, Bing

supporting information, p. 2906 - 2910 (2018/05/28)

A novel iminoxyl radical-promoted dichotomous regioselective 5-exo-trig cyclization onto vinylic halogen/1,2-halogen radical shift sequence is developed for the synthesis of halomethyl isoxazoles/cyclic nitrones using β-halo-β,?- and ?-halo-?,?-unsaturated ketoximes as the substrates and PhI(OAc)2/TEMPO as the oxidation system. DFT calculations reveal that a halogen-bridged three-membered ring transition state is involved in the 1,2-Cl-/Br-atom shift, while the 1,2-I atom migration can be taken into account with an elimination/readdition mechanism. The migration ability was indicated to be ranked in the following order: I > Br > Cl.

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